Home / 7,181.76-9,911.32-4,037.94

Finding the Fourth Proportional to 7,181.76, 9,911.32 and 4,037.94

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Solution

The fourth proportional to 7,181.76, 9,911.32 and 4,037.94 is: 5,572.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.76 : 9,911.32 = 4,037.94 : x
  2. Step 2: Convert to fraction form
    7,181.76/9,911.32 = 4,037.94/x
  3. Step 3: Cross multiply
    7,181.76x = 9,911.32 × 4,037.94
  4. Step 4: Simplify right side
    7,181.76x = 40,021,315.48
  5. Step 5: Solve for x
    x = 40,021,315.48/7,181.76
  6. Step 6: Final answer
    x = 5,572.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.